The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 01, 2011

Filed:

Oct. 17, 2007
Applicants:

Kazuhide Tamaki, Kawasaki, JP;

Ryuji Fujita, Kawasaki, JP;

Junichi Niitsuma, Kawasaki, JP;

Takayuki Sasaki, Kawasaki, JP;

Inventors:

Kazuhide Tamaki, Kawasaki, JP;

Ryuji Fujita, Kawasaki, JP;

Junichi Niitsuma, Kawasaki, JP;

Takayuki Sasaki, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power consumption analyzing method, to be implemented by a computer, is for a circuit developing procedure that makes a logic design of the circuit in an RTL design stage and inserts a gated clock with respect to the circuit in a subsequent logic synthesis stage. The method comprises an extraction step, implemented by the computer, extracting a signal which is judged that it will be transformed into a gated clock in the logic synthesis stage, and storing the signal in a memory part, a measuring step, implemented by the computer, measuring an valid time of the signal stored in the memory part by a logic simulation, and storing the valid time in the memory part, and a post-simulation step, implemented by the computer, computing a power consumption analysis result of the circuit from the valid time stored in the memory part, a number of registers for each of modules that are function units forming the circuit, and a memory capacity coefficient indicating an extent to which a memory capacity within the circuit affects the power consumption of the circuit, and outputting the power consumption analysis result.


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